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Subject: Re: Gravy for the brain that supports a 2500+ elo standard for computer GM's

Author: Uri Blass

Date: 11:06:14 06/23/01

Go up one level in this thread


On June 23, 2001 at 11:23:35, Mogens Larsen wrote:

>On June 23, 2001 at 10:15:53, Robert Hyatt wrote:
>
>>No he isn't.  What do you do with a program that has a huge array with all
>>chess moves precomputed and just copied from the array when it is time to
>>generate moves for a specific piece on a specific square.  IE Carl Ebeling's
>>thesis "all the right moves" was based on hardware that did just this.  What
>>about hundreds of evaluation "patterns" that are stored directly in the
>>program and matched when an evaluation is done.
>
>Well, I forgot the hardware restrictions. Not on the number of CPUs and speed,
>but RAM and storage facilities. If the program you mention can function under
>the determined conditions then okay. That is, if the precomputed moves are made
>by that program.
>
>>And finally, what about humans that have memorized thousands or tens (or
>>hundreds) of thousands of moves and can recite them back perfectly?
>
>The likelyhood of a human player to have replayed the moves sometime on a
>chessboard is sufficient to allow human memory ;-). Besides, it's obvious that
>humans and programs don't play the exact same game. If it's supposed to hold
>interest, a balancing of strengths and weaknesses is important.
>
>>If crafty could simply use every game it has ever played, and I have most
>>of them, that would make a formidable book.  But I don't see why that would
>>be any more acceptable than looking at what others have played, unless the
>>GMs are given the same limitation.
>
>The reason is that Crafty is handed the solution, ie. "Playing e5 now is the
>right move". Instead of having to figure it out by itself though play. You do
>that to a large extent, because your book is generated by pgn and not handtyped.
>However, Crafty is still guided by statistics of the most common move.


I believe that there are also grandmaster who are guided by similiar statistics
in a lot of cases because they have not time to analyze everything they
remember.

Do you think that they cheat?

Uri



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